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                        <details>The authors state that they re-interpreted a portion of the map and revised the model in that region.</details>
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        </revision_history>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2018-04-22</deposition>
            <header_release>2018-05-30</header_release>
            <map_release>2018-05-30</map_release>
            <update>2025-07-16</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>GM048123</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Science Foundation (NSF, United States)</funding_body>
                <code>MCB1517625</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>GM071940</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>GM007185</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/Office of the Director</funding_body>
                <code>1S10OD018111</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>1U24GM116792</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Science Foundation (NSF, United States)</funding_body>
                <code>DBI-1338135</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Science Foundation (NSF, United States)</funding_body>
                <code>DMR-1548924</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>American Heart Association</funding_body>
                <code>14POST18870059</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>CryoEM structure of Tetrahymena telomerase with telomeric DNA at 4.8 Angstrom resolution</title>
        <authors_list>
            <author>Jiang J</author>
            <author>Wang Y</author>
            <author>Susac L</author>
            <author>Chan H</author>
            <author>Basu R</author>
            <author>Zhou ZH</author>
            <author>Feigon J</author>
        </authors_list>
        <keywords>Telomerase, telomere, REPLICATION</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Jiang J</author>
                    <author order="2">Wang Y</author>
                    <author order="3">Susac L</author>
                    <author order="4">Chan H</author>
                    <author order="5">Basu R</author>
                    <author order="6">Zhou ZH</author>
                    <author order="7">Feigon J</author>
                    <title>Structure of Telomerase with Telomeric DNA.</title>
                    <journal_abbreviation>Cell</journal_abbreviation>
                    <volume>173</volume>
                    <first_page>1179</first_page>
                    <last_page>1190.e13</last_page>
                    <year>2018</year>
                    <external_references type="PUBMED">29775593</external_references>
                    <external_references type="DOI">doi:10.1016/j.cell.2018.04.038</external_references>
                    <external_references type="ISSN">1097-4172</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <emdb_list>
            <emdb_reference>
                <emdb_id>EMD-7820</emdb_id>
                <relationship>
                    <other>other EM volume</other>
                </relationship>
            </emdb_reference>
        </emdb_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6d6v</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Endogenous assembled Tetrahymena telomerase bound with telomeric DNA</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Endogenous assembled Tetrahymena telomerase bound with telomeric DNA</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>3</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>4</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>5</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>6</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>7</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>8</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="5911">Tetrahymena thermophila</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Telomerase-associated protein 82</name>
                <natural_source database="NCBI">
                    <organism ncbi="5911">Tetrahymena thermophila</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.082040289</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MKLTKGGSYILKKVDRKQFYQDEEIVMQIKKILGQKTTDCKQYIKCECIDGLGDEALIYFEMLANQNQHLQKNDVIMIQD
YLNDKTQNDKIVVLVTRFQFCKASHVQPKTAQKESIQLLNTEKTIIQKSKITKNPAEEVLKFIEVNEKDNSSNSEDMIIE
QQKQEIKNNQKEKQSINGFNLEDSYSNISDITNFGGKSNFNIGSLSDQLSKQTLLISQLQVGKNRFSFKFEGRVVYKSST
FQNQQDSKYFFITAQDANNQEINLSFWQKVDQSYQTLKVGQYYYFIGGEVKQFKNNLELKFKFGDYQIIPKETLSANYVQ
PLALQPSKQFGNDSIGDSDYSIHNLIEKEESIAQKGYNGQKNNKYRQNNNNSKHTLLISEVLKTSKQYLSVLAQVVDIQS
SDKNIRLKICDNSCNQELKVVIFPDLCYEWRDKFSINKWYYFNEFVRQIYNDEVQLKNNIHSSIKESDDQRKVITYNQEQ
GVFKKSISINSNDSFEIKPKISYKNNSNQEQRIYSSIEEIIQQAQASEIGQKKEFYVYGNLVSIQMKNKLYYYRCTCQGK
SVLKYHGDSFFCESCQQFINPQVHLMLRAFVQDSTGTIPVMIFDQQSSQLINQIDPSIHVQEAGQYVKNCIENGQEEIIR
QLFSKLDFARFIFEIQFENKEFNNEQEIAYKVLKIEKENIKEESKYLLKKLEHLINNNQNN</string>
                    <external_references type="UNIPROTKB">D2CVN6</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Telomerase reverse transcriptase</name>
                <natural_source database="NCBI">
                    <organism ncbi="5911">Tetrahymena thermophila</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.133486938</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MQKINNINNNKQMLTRKEDLLTVLKQISALKYVSNLYEFLLATEKIVQTSELDTQFQEFLTTTIIASEQNLVENYKQKYN
QPNFSQLTIKQVIDDSIILLGNKQNYVQQIGTTTIGFYVEYENINLSRQTLYSSNFRNLLNIFGEEDFKYFLIDFLVFTK
VEQNGYLQVAGVCLNQYFSVQVKQKKWYKNNFNMNGKATSNNNQNNANLSNEKKQENQYIYPEIQRSQIFYCNHMGREPG
VFKSSFFNYSEIKKGFQFKVIQEKLQGRQFINSDKIKPDHPQTIIKKTLLKEYQSKNFSCQEERDLFLEFTEKIVQNFHN
INFNYLLKKFCKLPENYQSLKSQVKQIVQSENKANQQSCENLFNSLYDTEISYKQITNFLRQIIQNCVPNQLLGKKNFKV
FLEKLYEFVQMKRFENQKVLDYICFMDVFDVEWFVDLKNQKFTQKRKYISDKRKILGDLIVFIINKIVIPVLRYNFYITE
KHKEGSQIFYYRKPIWKLVSKLTIVKLEEENLEKVEEKLIPEDSFQKYPQGKLRIIPKKGSFRPIMTFLRKDKQKNIKLN
LNQILMDSQLVFRNLKDMLGQKIGYSVFDNKQISEKFAQFIEKWKNKGRPQLYYVTLDIKKCYDSIDQMKLLNFFNQSDL
IQDTYFINKYLLFQRNKRPLLQIQQTNNLNSAMEIEEEKINKKPFKMDNINFPYYFNLKERQIAYSLYDDDDQILQKGFK
EIQSDDRPFIVINQDKPRCITKDIIHNHLKHISQYNVISFNKVKFRQKRGIPQGLNISGVLCSFYFGKLEEEYTQFLKNA
EQVNGSINLLMRLTDDYLFISDSQQNALNLIVQLQNCANNNGFMFNDQKITTNFQFPQEDYNLEHFKISVQNECQWIGKS
IDMNTLEIKSIQKQTQQEINQTINVAISIKNLKSQLKNKLRSLFLNQLIDYFNPNINSFEGLCRQLYHHSKATVMKFYPF
MTKLFQIDLKKSKQYSVQYGKENTNENFLKDILYYTVEDVCKILCYLQFEDEINSNIKEIFKNLYSWIMWDIIVSYLKKK
KQFKGYLNKLLQKIRKSRFFYLKEGCKSLQLILSQQKYQLNKKELEAIEFIDLNNLIQDIKTLIPKISAKSNQQNTN</string>
                    <external_references type="UNIPROTKB">O77448</external_references>
                </sequence>
                <ec_number>2.7.7.49</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>Telomerase holoenzyme TEB heterotrimer Teb3 subunit</name>
                <natural_source database="NCBI">
                    <organism ncbi="5911">Tetrahymena thermophila</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.014007625999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MDAEQEQVMYPRILFEQMAQFRGKKVTVVGNVCNEDQNDSLVIEFGPTGLNQHVVIDNYRRVDLNNTTKFVEIRGVVLNQ
NIVSCEELTEFEQKDPFDFDTYSKLIHLSQSDKLSSLFTDQ</string>
                    <external_references type="UNIPROTKB">A0A0U8UFF4</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="4">
                <name>Telomerase holoenzyme Teb2 subunit</name>
                <natural_source database="NCBI">
                    <organism ncbi="5911">Tetrahymena thermophila</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.030993035</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MSNRVQGGFDNNSGNNQSAQKQQAEKIPQITVPLNCFMINQIVKAAKENPQAHSGNHYEWYGAFENAIITAKFEFLQSIN
DSPKIMGKLSDSTGCIEVVIQKSKMSDELPEFVQAYEIELQNNGNRHKYVRAMLKMRKNAQIQLLYFSIVNDANEISRHG
LDLCLRYLQRKHGIEDFMHMTNDKAHNNHNASAQKVHYQIDRNQQPKEQVLELMRQILKHNPNDQIPKSKIIEFFQSQLN
QVQINQILQQLVSANEIFSVGSDNYLLNV</string>
                    <external_references type="UNIPROTKB">A0A0U8TRG9</external_references>
                </sequence>
            </protein_or_peptide>
            <rna macromolecule_id="5">
                <name>RNA (159-MER)</name>
                <natural_source database="NCBI">
                    <organism ncbi="5911">Tetrahymena thermophila</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.050746983999999995</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <sequence>
                    <string>AUACCCGCUUAAUUCAUUCAGAUCUGUAAUAGAACUGUCAUUCAACCCCAAAAAUCUAGUGCUGAUAUAACCUUCACCAA
UUAGGUUCAAAUAAGUGGUAAUGCGGGACAAAAGACUAUCGACAUUUGAUACACUAUUUAUCAAUGGAUGUCUUAUUUU</string>
                    <external_references type="GENBANK">AF399707.1</external_references>
                </sequence>
            </rna>
            <protein_or_peptide macromolecule_id="6">
                <name>Telomerase-associated protein 50</name>
                <natural_source database="NCBI">
                    <organism ncbi="5911">Tetrahymena thermophila</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.013379484</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)
(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)</string>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="7">
                <name>Telomerase La-related protein p65</name>
                <natural_source database="NCBI">
                    <organism ncbi="5911">Tetrahymena thermophila</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.06420736299999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MDEYLENTNLEELEQECFMEDYQHEDVVEQENHQVDANDIYENQQMNDESQLNQDVKISQQKEQAVEMIEEQQQNNQDKF
KQFQDCMAHITELNFKRNYQNLTEQSSSNNVVAEELDIKESLKLQMEYYFCDTNLTHDSYLRGIISKSPKNCVDIKVFLK
FNKIQQILKQIQDKQIVSTYGIENQSQKKNHKNYKNQNATFSKKDLIHLIRDSLKESKILKVKMDSLKVKRRFPFNLEQA
LKNSKQRTLYIDFLPPKCSKQTLVSIFGNFRIININLPLQKNSQLCQGFAFIEFFSEEEANQALITKNSSIPKELILLTE
KKIGQGSIRIITYKKWQEEKQSFKELSKNQNEQKNKNMNQSRKASDEFVSIDVEIKQNCLIKIINIPQGTLKAEVVLAVR
HLGYEFYCDYIDENSNQINSNKISLSTQQQNTAQCSNIQIENNLIQQDQHPQLNDLLKEGQAMIRFQNSDEQRLAIQKLL
NHNNNKLQIEIRGQICDVISTIPEDEEKNYWNYIKFKKNEFRKFFFMKKQQKKQNITQNYNK</string>
                    <external_references type="UNIPROTKB">W7X6T2</external_references>
                </sequence>
            </protein_or_peptide>
            <dna macromolecule_id="8">
                <name>DNA (5'-D(P*GP*TP*TP*GP*GP*GP*GP*TP*TP*GP*GP*GP*GP*TP*TP*GP*GP*GP*G)-3')</name>
                <natural_source database="NCBI">
                    <organism ncbi="5911">Tetrahymena thermophila</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.006059875</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <sequence>
                    <string>(DG)(DT)(DT)(DG)(DG)(DG)(DG)(DT)(DT)(DG)(DG)(DG)(DG)(DT)(DT)(DG)(DG)(DG)(DG)</string>
                </sequence>
                <classification>DNA</classification>
            </dna>
            <ligand macromolecule_id="9">
                <name>ZINC ION</name>
                <molecular_weight>
                    <theoretical units="MDa">6.5409e-05</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>ZN</formula>
            </ligand>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
            <specimen_preparation_list>
                <single_particle_preparation preparation_id="1">
                    <buffer>
                        <ph>8.0</ph>
                    </buffer>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TITAN KRIOS</microscope>
                    <illumination_mode>FLOOD BEAM</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">300</acceleration_voltage>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 QUANTUM (4k x 4k)</film_or_detector_model>
                            <detector_mode>SUPER-RESOLUTION</detector_mode>
                            <average_exposure_time units="s">12.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">52.0</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <ctf_correction>
                    <software_list>
                        <software>
                            <name>CTFFIND</name>
                        </software>
                    </software_list>
                    <type>PHASE FLIPPING AND AMPLITUDE CORRECTION</type>
                </ctf_correction>
                <startup_model type_of_model="EMDB MAP">
                    <emdb_id>EMD-6443</emdb_id>
                </startup_model>
                <final_reconstruction>
                    <resolution units="Å" res_type="BY AUTHOR">4.8</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                    <number_images_used>52506</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing/>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                </final_angle_assignment>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="67109">
        <file>emd_7821.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>256</col>
            <row>256</row>
            <sec>256</sec>
        </dimensions>
        <origin>
            <col>-128</col>
            <row>-128</row>
            <sec>-128</sec>
        </origin>
        <spacing>
            <x>256</x>
            <y>256</y>
            <z>256</z>
        </spacing>
        <cell>
            <a units="Å">348.16</a>
            <b units="Å">348.16</b>
            <c units="Å">348.16</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
            <gamma units="deg">90.0</gamma>
        </cell>
        <axis_order>
            <fast>X</fast>
            <medium>Y</medium>
            <slow>Z</slow>
        </axis_order>
        <statistics>
            <minimum>-0.054381963</minimum>
            <maximum>0.15599543</maximum>
            <average>-0.000078641795</average>
            <std>0.0058957483</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.36</x>
            <y units="Å">1.36</y>
            <z units="Å">1.36</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.055</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::EMD-7821::::</label>
        <annotation_details>Tetrahymena telomerase with telomeric DNA</annotation_details>
    </map>
    <interpretation>
        <segmentation_list>
            <segmentation>
                <file>emd_7821_msk_1.map</file>
            </segmentation>
        </segmentation_list>
    </interpretation>
</emd>
